CN108447403A - Flexible display apparatus and its manufacturing method - Google Patents
Flexible display apparatus and its manufacturing method Download PDFInfo
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- CN108447403A CN108447403A CN201810291537.6A CN201810291537A CN108447403A CN 108447403 A CN108447403 A CN 108447403A CN 201810291537 A CN201810291537 A CN 201810291537A CN 108447403 A CN108447403 A CN 108447403A
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- flexible display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The invention discloses a kind of flexible display apparatus, including at least two non-bent regions for bending regions and being arranged between two neighboring non-bending region, and the bent region is equipped with stress-buffer layer.The stress-buffer layer is used to buffer the stress that the flexible display apparatus is generated by bending, and then the flexible display apparatus is kept stable state when the flexible display apparatus is in bending state, and then simplifies the structure of the flexible display apparatus.The present invention also provides a kind of manufacturing methods of flexible display apparatus.
Description
Technical field
The present invention relates to flexible display technologies field, more particularly to a kind of flexible display apparatus and its manufacturing method.
Background technology
Recently, the characteristics of flexible display apparatus can be bent due to it becomes one of the emphasis direction of display industry development.
In general, flexible display apparatus realizes expansion and folding by the way that hinge or flexing mechanism is arranged, however wrapped in the structure of such mechanism
The element included is more, complicated so that complicatedization of the flexible display apparatus.
Invention content
In order to solve foregoing problems, a kind of flexible display apparatus of present invention offer and its manufacturing method.
A kind of flexible display apparatus, including at least two non-bending regions and setting are between two neighboring non-bending region
Bent region, the bent region be equipped with stress-buffer layer, the stress-buffer layer be used in the Flexible Displays
Device buffers the stress that the flexible display apparatus is generated by bending when being in bending state.
Further, the area of the stress-buffer layer is more than or equal to the area in the bent region.
Further, the area of the stress-buffer layer is less than or equal to the area in the bent region.
Further, the flexible display apparatus includes Flexible Displays main body, and the Flexible Displays main body includes flexible aobvious
Show panel and the backboard for being used to support the flexible display panels, the flexible display panels are installed in the backboard, described to answer
Power buffer layer is arranged in side of the backboard far from the flexible display panels, for being in curved in the flexible display apparatus
The stress of the flexible display panels and backboard generation is buffered when folding state.
Further, the material of the stress-buffer layer includes metal nano material, and the stiffening property of the stress-buffer layer is big
In the stiffening property of the backboard.
Further, the metal nano material is metal multistable nano structural material, the metal multistable nanometer
Structural material is that the super size two-phase glass of receiving of magnesium-based is brilliant.
Further, the super average composition for receiving size two-phase glass crystalline substance of the magnesium-based is Mg49Cu42Y9.
Further, the stress-buffer layer is a flood structure, the length of the stress-buffer layer with it is described bent
The length in region is identical.
Further, the stress-buffer layer includes multiple spaced metalworks, the multiple metalwork array row
It is distributed on the bent region.
Further, the multiple metalwork is intervally arranged along first direction, and each metalwork second direction extends.
Further, the metalwork is metal wire, the metal wire be in wave structure or linear structure at least its
One of.
Further, the flexible display apparatus further includes the adhered layer set on the bent region, and the stress is slow
It rushes layer and the bent region is attached at by the adhered layer.
A kind of manufacturing method of flexible display apparatus as described above comprising following steps：
Flexible Displays main body is provided, the Flexible Displays main body includes at least two non-bending regions and is arranged adjacent two
Bent region between a non-bending region；And
Stress-buffer layer is attached at the bent region by adhered layer, to form the flexible display apparatus.
Further, include multiple grooves on the adhered layer to form multiple paste sections, the stress-buffer layer is logical
Multiple paste sections are crossed to be attached on the bent region.
Flexible display apparatus provided by the invention and its manufacturing method, by being answered described in the bent region setting
Power buffer layer, to buffer the flexible display apparatus because caused by bending when the flexible display apparatus is in bending state
Stress, and then the flexible display apparatus is kept into stable state.The stress-buffer layer is simple in structure, and then simplification is described soft
The structure of property display device.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a side view of the state of the flexible display apparatus that first embodiment of the invention provides.
Fig. 2 is the vertical view of flexible display apparatus shown in Fig. 1.
Fig. 3 is the bending sketch map of flexible display apparatus shown in Fig. 1.
Fig. 4 is the schematic diagram when stress-buffer layer of flexible display apparatus is in bending state.
Fig. 5 is schematic diagram when flexible display apparatus shown in Fig. 1 is in bending state.
Fig. 6 is a side view of the state of the flexible display apparatus that second embodiment of the invention provides.
Fig. 7 is the bending sketch map of flexible display apparatus shown in Fig. 6.
Fig. 8 is schematic diagram when flexible display apparatus shown in Fig. 7 is in bending state.
Fig. 9 is the partial exploded view of flexible display apparatus shown in Fig. 8.
Figure 10 is the schematic diagram for the flexible display apparatus that third embodiment of the invention provides.
Figure 11 is the schematic diagram for the flexible display apparatus that an embodiment provides.
Figure 12 is the partial schematic diagram in the bent region that single metal part is set to flexible display apparatus.
Figure 13 is stress schematic diagram when flexible display apparatus is in a bending state.
Figure 14 is the stress schematic diagram of the regional area I of flexible display apparatus shown in Figure 13.
Figure 15 is the schematic diagram that wave structure formula metal wire is set in flexible substrate.
Figure 16 is the curve synoptic diagram for the ductility that metal wire is set in flexible substrate.
Figure 17 is the flow chart of the manufacturing method of flexible display apparatus provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
A kind of flexible display apparatus, including at least two non-bending regions and setting are between two neighboring non-bending region
Bent region, the bent region be equipped with stress-buffer layer.The stress-buffer layer is used in the Flexible Displays
The stress that buffering flexible display device is generated by bending when device is in bending state, to keep the flexible display apparatus
Stable state.So-called stable state refers to the flexible display apparatus in bending state, can keep the dimensionally stable of bending
The dimensionally stable that the indeformable and described flexible display apparatus can keep flat in flattened state is indeformable.
First embodiment
It please refers to Fig.1 and Fig. 2, a kind of flexible display apparatus 10 provided for first embodiment of the invention.It is described flexible aobvious
Showing device 10 includes Flexible Displays main body 11 and stress-buffer layer 13.The Flexible Displays main body 11 includes flexible display panels
111 and it is used to support the backboards 115 of the flexible display panels 111, had on the flexible display panels 111 and backboard 115
At least two it is non-bending regions 101 and be arranged it is two neighboring it is non-bending region 101 between bent regions 103, it is described can
It bends region 103 and is equipped with stress-buffer layer 13, the stress-buffer layer 13 is used to be in curved in the flexible display apparatus 10
The stress that the flexible display apparatus 10 is generated by bending is buffered when folding state, and then the flexible display apparatus 10 is kept steady
Determine state.
Specifically, please referring to Fig. 3 and Fig. 4, the flexible display panels 111 are installed in the backboard 115, described to answer
Power buffer layer 13 is arranged in side of the backboard 115 far from the flexible display panels 111.
The flexible display apparatus 10 includes flattened state (as shown in Figure 1, 2) and bending state (as shown in Figure 5).It is described
When flexible display apparatus 10 is in flattened state, the bent region 103 is in flat condition.The flexible display apparatus 10 is in
When bending state, the bent region 103 is in bending.
In the present embodiment, the quantity in the non-bending region 101 is two, and the bent region 103 is non-positioned at two
Between bending region 101.It is appreciated that the quantity and position in the bent region 103 and the non-bending region 101, it can
To convert setting, the flexible display apparatus 10 can be bent into different shapes.
In the present embodiment, the quantity of the stress-buffer layer 13 is one.The area of the stress-buffer layer 11 be more than or
Person is equal to the area in bent region 103.In other words, the stress-buffer layer 11 is set to the region of the backboard 115
Area is more than or equal to the area in bent region 103.The stress-buffer layer 13 is flood structure, the stress-buffer layer
13 are attached on the backboard 115 in the bent region 103, the flexible display panels 111, the backboard 115 and described answer
Power buffer layer 13 is cascading.The length of the stress-buffer layer 13 is identical as the length in the bent region 103.It can
To understand, in one embodiment, the area of the stress-buffer layer 11 is less than or equal to the area in bent region 103.
Further, the stress-buffer layer 13 is area entirety identical with the area in the bent region 103
Continuous structure.In other words, the stress-buffer layer 13 and length, width, the shape in the bent region 103 are homogeneous
Together.Since the area of the stress-buffer layer 13 is identical as the area in the bent region 103, and then can reach good
Locking and stablizing effect.It is appreciated that the stress-buffer layer 13 can be other shapes, it is such as latticed.
The stress-buffer layer 13 includes metal nano material.In present embodiment, the metal nano material includes gold
Belong to multistable nano structural material.The metal multistable nanostructure can keep flat shape invariance when not being bent
Shape, the metal multistable nanostructure can keep the shape invariance shape after bending when being bent into variously-shaped.The metal
The material of multistable nanostructure has the properties such as excellent stiffening property, ductility, it is made to keep stabilization in the state of difference
State.The metal multistable nano structural material is formed in the bent region 103 by way of vapor deposition.The stress
The stiffening property of buffer layer 13 is more than the stiffening property of the backboard 115.The stiffening property is the ability restored after material buckles.It is appreciated that
The metal multistable nano structural material can also physically or chemically etc. modes be installed in the bent region by other
103, such as fitted on the backboard 115 by adhesives.
In present embodiment, the metal multistable nano structural material is that the magnesium-based of amorphous/nanocrystalline double structure is super
Size two-phase glass of receiving is brilliant.The super size two-phase glass crystalline substance of receiving of the magnesium-based combines and strengthens nanocrystalline material and amorphous nano material
The advantage of material, shows close to ideal tensile strength at room temperature, and solves the problems, such as dendrite.The super ruler of receiving of the magnesium-based
The limit stress of very little two-phase glass crystalline substance is up to 3.3GPa, to when by heavily stressed pull, can still keep shape not
Deformation.When material preparation, by magnetron sputtering method by the MgCu2 crystal grain of diameter about 6nm be evenly embedded into about 2nm it is thick be rich in magnesium
Amorphous shell in, and then obtain the super size two-phase glass crystalline substance (supra- that receives of the magnesium-based with amorphous/nanocrystalline double structure
Nanometre-sized dual-phase glass-crystal, SNDP-GC).MgCu2 nanocrystals have low dislocation close
Degree, shows lower state stability.The super average composition for receiving size two-phase glass crystalline substance of the magnesium-based is Mg49Cu42Y9, wherein
The volume fraction of MgCu2 is 56%.When strain occur when, the magnesium-based is super to receive the double structure of size two-phase glass crystalline substance, can
The mobile propagation for preventing partial cut band, in any shear band occurred, the division of embedded crystal grain and rotation are also beneficial to
Material reinforcement and the bating effect for resisting shear band.
Referring to Fig. 1 and Fig. 2, when being in flattened state for the flexible display apparatus 10, the bent region
103 be in flat condition, and the angle substantially 180 degree between two non-bending regions 101, the flexible display panels 111 are in tablet
Shape, the stress-buffer layer 13 make the Flexible Displays main body 11 keep the flattened state not to be bent in bent region 103
Deformation, is convenient to use.In other words, the stress-buffer layer 13 can be in flattened state in the flexible display apparatus 10
When by the flexible display apparatus 10 keep stable state.
The bent region 103 is bent, Fig. 3 to Fig. 5 is please referred to, when the stress-buffer layer 13 and the bendable folding area
When domain 103 is bent into the circular arc substantially in 180 degree, the angles in two non-bending regions 101 are substantially in 0 degree.In this bending state
Under (even if after external force is cancelled), the Flexible Displays main body 11 is intended to reply flat original state, the stiffening property of the stress-buffer layer 13
More than the stiffening property of Flexible Displays main body 11, the stress-buffer layer 13 stops that the flexible display panels 111 restore to the original state, described
The bent region 103 of flexible display panels 111 can keep the circular shape of its substantially 180 degree steady under the bending state
Fixed constant, i.e., the described flexible display apparatus 10 is generally in dynamic balance state, and the stress-buffer layer 13 is adjacent to described flexible aobvious
Show that the compression suffered by the medial surface 131 of 111 side of panel is essentially a zero, i.e. the medial surface 131 of stress-buffer layer 13 is answered
Resultant force inside power buffer layer 13 is essentially a zero；The stress-buffer layer 13 is outer far from 111 side of the flexible display panels
Tensile stress suffered by side 133 is essentially a zero, i.e. the medial surface 133 of stress-buffer layer 13 is stressed the conjunction inside buffer layer 13
Power is essentially a zero.In other words, the stress-buffer layer 13 can be in the bending state in the flexible display apparatus 10
When by the flexible display apparatus 10 keep stable state.
As shown in Figure 1, for the front view of flexible display apparatus 10, the bent region in 10 bottom of flexible display apparatus
103 increase the stress-buffer layers 13 made of multistable nanostructured metal component, it is clear that in flattened state (0 degree) are Panle
Stable state is may be in multistable nanostructured metal component.It is illustrated in figure 4 multistable nanostructured metal semicircle
Shape structure can make it also can in semicircle form since the multistable nanostructured metal has good stiffening property and ductility
Keep stable state.That is the compression of the medial surface 131 (inner circle shown in Fig. 4) of stress-buffer layer 13 is essentially a zero, stress buffer
Lateral surface 133 (inner circle shown in Fig. 4) outer circle tensile stress of layer 13 is also essentially a zero.As shown in figure 5, by multistable nanostructure gold
Belong to the outside (lower part) that component is attached at Panel, after Panel bendings bend 90 degree from flat condition, since metal parts exists
It remains to keep stable state when this form, is opened although Panel has under this bending state to both sides to reach flat
Smooth stable state, but if stiffening property when multistable nanostructured metal component is in the stable state is more than Panel's
When stiffening property, Panel has just been maintained the shape of radius bend identical with the metal parts by multistable nanostructured metal component,
To which Panel has reached stable state, entire flexible display apparatus (Panel+ multistable nanostructured metals component) also reaches
Stabilization (balance) state.
Certainly, being not only in the flattened state in bent region 103 keeps its flat condition indeformable, or described
The bending of bent region 103 is indeformable when being in substantially 180 circular arc, when the bent region 103 bending is in other shapes,
Such as S-shaped or Else Rule or irregular shape, the stress-buffer layer 13 can also be such that the Flexible Displays main body 11 protects
Hold the shape invariance of its bending.Since the stress-buffer layer 13 is only made of the metal multistable nano structural material of single layer,
Its is simple in structure, and then simplifies the structure of the flexible display apparatus 10.
In one embodiment, in the bent region 103, the stress-buffer layer 13 is viscous by adhered layer (not shown)
It is connected to the backboard 115, the adhered layer includes double-sided pressure-sensitive.The adhered layer may include that at least one groove makes institute
It is at least partly not Nian Jie with the backboard 115 to state stress-buffer layer 13, advantageously ensures that the ductility of the stress-buffer layer 13,
And then facilitate the bending of the flexible display apparatus 10.
Second embodiment
Referring to Fig. 6, a kind of flexible display apparatus 30 provided for second embodiment of the invention.The flexible display apparatus
30 include Flexible Displays main body 31 and stress-buffer layer 33.The Flexible Displays main body 31 includes at least two non-bending regions
301 and be arranged it is two neighboring it is non-bending region 301 between bent region 303, the bent region 303 be equipped with answer
Power buffer layer 33.Second embodiment and first embodiment the difference is that：
Stress-buffer layer 33 includes the metalwork 331 of multiple settings that are spaced apart.331 piece shape shape of metalwork.Specifically,
The multiple metalwork 331 is spaced apart along first direction to be configurated, and each metalwork 331 is along vertical with the first direction
Second direction extend so that the multiple metalwork 331 is arranged in array in the bent region 303.Implement one
In example, the first direction is not limited and is mutually perpendicular to the second direction, the first direction is different from the second direction
.
In other embodiments, the multiple metalwork 331 can not be intervally arranged along the first direction, multiple metals
Part 331 can not extend in the same direction.Multiple metalworks 331 are separately positioned in the bent region 303 independently of each other,
Manufacturing cost can be reduced while the flexible display apparatus 30 is kept stablizing by different conditions.
Referring to Fig. 6, when being in flattened state for the bent region 303, between two non-bending regions 301
Angle substantially 180 degree, the flexible display panels 311 are in tabular, and the stress-buffer layer 33 makes the Flexible Displays
Main body 31 keeps flattened state not flexural deformation, is convenient to use.
Referring to Fig. 7, bending the bent region 303.Referring to Fig. 8, when the bent region 303 is bent into
When the circular arc of 180 degree, substantially 0 degree of angle between two non-bending regions 301 of the flexible display panels 311.Come in
One step is refering to Fig. 9, and under this bending state, the Flexible Displays main body 31 is intended to reply flat original state, however, the stress buffer
The stiffening property of layer 33 is more than the stiffening property of 31 backboard 315 of the Flexible Displays main body, and the stress-buffer layer 33 stops described flexible aobvious
Show that main body 31 restores to the original state, entire flexible display apparatus 30 is in dynamic balance state, the metalwork 331 of the stress-buffer layer 33
3311 compression chords of medial surface of neighbouring 31 side of Flexible Displays main body are essentially a zero, i.e. the medial surface of metalwork 331
3311 is essentially a zero by the resultant force inside metalwork 331；The metalwork 331 of the stress-buffer layer 33 is far from described flexible aobvious
Show that institute's tension stress of the lateral surface 3313 of 31 side of main body is essentially a zero, i.e., the lateral surface 3313 of metalwork 331 is by metal
Resultant force inside part 331 is essentially a zero；And then make the bent region 303 of the Flexible Displays main body 31 in the bending state
The circular shape of its 180 degree can be kept to stablize down constant.
Increase in the bent region 303 of 30 bottom of flexible display apparatus and is answered made of multistable nanostructured metal component
Power buffer layer 30, the multistable nanostructured metal can be plated in the bottom of Flexible Displays main body (Panel) by evaporation process, and
And the multistable nanostructured metal and discontinuous, but the discrete metal piece with same distance, the discrete metal piece
Quantity is more, and the shape in its fixation bending region in bending of Flexible Displays main body 31 is approximately close to circle.Obviously, in open and flat shape
State (0 degree) is that Flexible Displays main body 31 and multistable nanostructured metal component may be in stable state.Multistable nanometer
Structural metal arcuate structure, i.e. stress-buffer layer 33 are arcuate structure, inside to every a piece of multistable nanostructured metal
The different designs of atomic structure can make it that can keep stable state within the scope of 0~90 degree of bending angle.I.e. per a piece of multistable
State nanostructured metal (metalwork) medial surface stress is essentially a zero, and outer lateral stress is also essentially a zero.Received per a piece of multistable
Rice structural metal is all in stable state.As shown in figs. 6 and 7, multi-disc multistable nanostructured metal is plated on Flexible Displays master
The outside (lower part) of body 31, during Flexible Displays main body 31 is from 90 degree of flat condition bending, due to by every a piece of
The design of multistable nanostructured metal interior atoms structure, the metal remain to keep in this form stable state, though
Right Flexible Displays main body 31 has under this bending state opens to both sides to reach flat stable state, but if plates
When the stiffening property of the entire multistable nanostructured metal part 331 of Panel is more than the stiffening property of Flexible Displays main body 31, Flexible Displays
Main body 31 has just been maintained the shape of radius bend identical with the metal parts by multistable nanostructured metal, to flexible aobvious
Show that main body 31 has reached stable state, entire flexible panel (numerous multistables of Flexible Displays main body+be plated on Flexible Displays main body
Nanostructured metal) also reach stabilization (balance) state.
Certainly, being not only in the flattened state in bent region 303 keeps its flat condition indeformable, or in bendable
The bending of folding area domain 303 is indeformable when being substantially in 180 circular arc, when the bent region 303 bending is in other shapes, such as
S-shaped or Else Rule or irregular shape, the stress-buffer layer 33 can also be such that the flexible display panels 311 keep
Its shape invariance bent.Since the stress-buffer layer 33 is only made of the metal multistable nano structural material of single layer,
It is simple in structure, and then simplify the structure of the flexible display apparatus 30.
In one embodiment, each metalwork 331 is pasted on by least two paste sections in Flexible Displays main body 31.It changes
For it, between each metalwork 331 and Flexible Displays main body 31, be arranged at least two paste sections, each two paste section it
Between form a groove, at least two paste section is adhered between the metalwork 331 and the Flexible Displays main body 31,
I.e. metalwork 331 is not at least partly Nian Jie with Flexible Displays main body 31.Due to metalwork 331 at least partly not with Flexible Displays master
Body 31 is bonded, and then can improve the ductility of metalwork 331.
3rd embodiment
Referring to Fig. 10, third embodiment of the invention provides a kind of flexible display apparatus 70, the flexible display apparatus 70
Structure substantially with second embodiment provide the structure of flexible display apparatus 30 it is roughly the same.Flexible display apparatus 70 includes soft
Property the display main body 71 and stress-buffer layer 73 set on Flexible Displays main body 71.Flexible Displays main body 71 includes at least two non-curved
Folding area domain 701 and the bent region 703 being arranged between two neighboring non-bending region 701, on the bent region 703
Equipped with stress-buffer layer 73.
The stress-buffer layer 73 of the flexible display apparatus 70 includes multiple metalworks 731.Metalwork 731 is metal wire.
The material of metalwork 731 includes metal multistable nano structural material recited above.
Third embodiment of the invention and second embodiment difference lies in：Metalwork 731 is linear structure.It is described flexible aobvious
When showing device 70 is in bending state, the extending direction of metalwork 731 is consistent with the overbending direction of flexible display apparatus 70.
In one embodiment, 1 is please referred to Fig.1, metalwork 731 is wave structure.Metalwork 731 may be used and spring-like
As wave structure, can also by straight multistable metalwork 731 carry out Fractal Design.The wave structure can also by into
Row Fractal Design obtains.So-called point of shape has the morphological feature of the filling space in the form of non-integer dimension.Generally defined as " one
A coarse or scrappy geometry, is segmented into several parts, and each section all (at least approximately) is after whole reduce
Shape ", i.e., with self similarity property.It is appreciated that the metalwork 731 can be designed to other shapes, such as trapezoidal,
Triangle etc..Wave structure designs, the metalwork 731 of Fractal Design can improve the ductility of metalwork 731, so works as bendable
After folding area domain 703 is bent, curature variation metalwork 731 is pullled fracture after avoiding the problem that the bending of bent region 703, favorably
In the bending of flexible display apparatus 70, and extend the service life of the stress-buffer layer 73.The extending direction of metalwork 731
It is consistent with the overbending direction of flexible display panels 711.
Further, 2 are please referred to Fig.1, the flexible display apparatus 70 further includes adhered layer 75, and the adhered layer 75 includes
Multiple grooves 751 form multiple paste sections 753 in turn, for metalwork 731 to be adhered to Flexible Displays main body 71.Stress is slow
Layer 73, adhered layer 75 and Flexible Displays main body 71 is rushed to be cascading.
Specifically, each metalwork 731 is pasted on by least two paste sections 753 in Flexible Displays main body 71.Change and
At least two paste sections 753, each two paste section is arranged between each metalwork 731 and Flexible Displays main body 71 in Yan Zhi
A groove 751 is formed between 753.At least two paste section 753 is arranged for same layer.The metalwork 731 is glued with described
Patch portion 753 is bonded.Since metalwork 731 is not at least partly Nian Jie with Flexible Displays main body 71, and then metalwork 731 can be improved
Ductility.The material of the paste section 753 includes pressure sensitive adhesive (pressure sensitive adhesive, PSA).
In present embodiment, the length of each paste section 753 is L2, the length of the groove 751 between each two paste section 753
Degree is L1, so can guarantee the ductility of metalwork 731.Figure 13 and Figure 14 is please referred to, Figure 13 is flexible display apparatus 70
Stress schematic diagram when in a bending state, here, the crooked process radius in the bent region 703 of the flexible display apparatus 70
It is 3mm, Figure 14 is the stress schematic diagram of the regional area I of flexible display apparatus 70 shown in Figure 13, and the deeper region of color is answered
Power is smaller, and due to the cushioning effect of paste section 753, metalwork 731 is connected stress suffered by part with paste section 753, is less than
Metalwork 731 be not connected with paste section 753 part (respective grooves 751) stress.
In order to better illustrate metal wire ductility, 5 and Figure 16 are please referred to Fig.1, Figure 15 is wave structure formula metal wire 80
Schematic diagram in flexible substrate 90.Figure 16 is the curve synoptic diagram for the ductility that metal wire is set in flexible substrate, wherein
Curve A1 represents the ductility of linear metal wire with the curve of thickness change, and curve A2 represents prolonging for wave structure formula metal wire
Malleability with thickness change curve.As shown in figure 16, the thickness t of metal wire can also have an impact the ductility of metal wire, example
Such as, when 0.02 μm≤t≤0.2 μm, with the increase of t, the ductility of linear metal wire and wave structure formula metal wire
It can be promoted；When 0.2 μm≤t≤1 μm, with the increase of t, the ductility of wave structure formula metal wire and linear metal wire
Reduced performance；When 2 μm≤t≤50 μm, with the increase of t, the ductility of wave structure formula metal wire and linear metal wire
Performance boost.In certain sections, for example, when 2 μm≤t≤50 μm, the ductility of wave structure formula metal wire is significantly better than directly
The ductility of wire type metal wire.
The present invention also provides a kind of manufacturing methods of flexible display apparatus as described above, please refer to Fig.1 7 comprising following
Step：
Step 501, Flexible Displays main body is provided, the Flexible Displays main body includes at least two non-bending regions and setting
Bent region between two neighboring non-bending region.
Step 502, stress-buffer layer is attached at the bent region by adhered layer, it is described flexible aobvious to be formed
Showing device.Wherein, include multiple grooves on the adhered layer and then form multiple paste sections, the stress-buffer layer passes through multiple
Paste section is attached on the bent region.The stress-buffer layer is used to be in bending state in the flexible display apparatus
When buffer the flexible display apparatus because bending generate stress, and then by the flexible display apparatus keep stable state.
Further, the stress-buffer layer includes multiple metalworks, each metalwork and the Flexible Displays main body it
Between be adhered to together by least two paste sections.
Flexible display apparatus provided by the invention and its manufacturing method, by stress is arranged on the bent region
Buffer layer, the stress-buffer layer is for filling the Flexible Displays when the flexible display apparatus is in the bending state
Set holding stable state.The stress-buffer layer is simple in structure, while can lock the flexible display apparatus, simplifies
The structure of the flexible display apparatus also reduces the thickness and weight of the flexible display apparatus.
Further, due to adding a kind of metal parts (stress-buffer layer) in the bottom of Flexible Displays main body (Panel),
The metal parts is made of the material of multistable nanostructure, and the material of the multistable nanostructure has excellent stiffening property and extension
Property etc. properties, make the metal parts that all there is stable state under differently curved state, by the metal parts rigidity and
Stable state makes Flexible Displays main body keep the stable state of bending, to making Flexible Displays main body in fixed bending region
It is bent, and keeps stable state under different bending states, i.e., user unclamps hand from flexible display apparatus former
Original bending state can be kept, to substitute additional increased hinge (Hinge) rotating mechanism, can realize Flexible Displays master
The thickness of flexible OLED mobile phones can be also greatly reduced in the bending function of fixed area in body.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (14)
1. a kind of flexible display apparatus, which is characterized in that the flexible display apparatus includes at least two non-bending regions and sets
The bent region between two neighboring non-bending region is set, the bent region is equipped with stress-buffer layer, described to answer
Power buffer layer is used to buffer what the flexible display apparatus was generated by bending when the flexible display apparatus is in bending state
Stress.
2. flexible display apparatus as described in claim 1, which is characterized in that the area of the stress-buffer layer is more than or waits
Area in the bent region.
3. flexible display apparatus as described in claim 1, which is characterized in that the area of the stress-buffer layer is less than or waits
Area in the bent region.
4. flexible display apparatus as described in claim 1, which is characterized in that the flexible display apparatus includes Flexible Displays master
Body, the Flexible Displays main body include flexible display panels and are used to support the backboard of the flexible display panels, the flexibility
Display panel is installed in the backboard, and one far from the flexible display panels in the backboard is arranged in the stress-buffer layer
Side is answered for buffer that the flexible display panels and the backboard generate when the flexible display apparatus is in bending state
Power.
5. flexible display apparatus as claimed in claim 4, which is characterized in that the material of the stress-buffer layer includes that metal is received
Rice material, the stiffening property of the stress-buffer layer are more than the stiffening property of the backboard.
6. flexible display apparatus as claimed in claim 5, which is characterized in that the metal nano material is that metal multistable is received
Rice structural material, the metal multistable nano structural material are that the super size two-phase glass of receiving of magnesium-based is brilliant.
7. flexible display apparatus as claimed in claim 6, which is characterized in that super the flat of size two-phase glass crystalline substance of receiving of the magnesium-based
Group becomes Mg49Cu42Y9.
8. the flexible display apparatus as described in 1-7 any one of claim, which is characterized in that the stress-buffer layer is one
Flood structure, the length of the stress-buffer layer are identical as the length in bent region.
9. the flexible display apparatus as described in 1-7 any one of claim, which is characterized in that the stress-buffer layer includes
Multiple spaced metalworks, the multiple metalwork array arrangement is on the bent region.
10. flexible display apparatus as claimed in claim 9, which is characterized in that the multiple metalwork is along first direction interval
Arrangement, each metalwork extend in a second direction, the first direction and second direction difference.
11. flexible display apparatus as claimed in claim 9, which is characterized in that the metalwork is metal wire, the metal wire
For at least one in wave structure or linear structure.
12. flexible display apparatus as described in claim 1, which is characterized in that the flexible display apparatus further includes being set to institute
The adhered layer in bent region is stated, the stress-buffer layer is attached at the bent region by the adhered layer.
13. a kind of manufacturing method of flexible display apparatus as described in 1-12 any one of claim comprising following step
Suddenly：
Flexible Displays main body is provided, the Flexible Displays main body includes at least two non-bending regions and is arranged two neighboring non-
Bend the bent region between region；And
Stress-buffer layer is attached at the bent region, to form the flexible display apparatus.
14. manufacturing method as claimed in claim 13, which is characterized in that including multiple grooves to be formed on the adhered layer
Multiple paste sections, the stress-buffer layer are attached to by multiple paste sections on the bent region.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291537.6A CN108447403B (en) | 2018-04-03 | 2018-04-03 | Flexible display device and method of manufacturing the same |
| PCT/CN2018/084086 WO2019192035A1 (en) | 2018-04-03 | 2018-04-23 | Flexible display device and manufacturing method therefor |
| US16/113,420 US10720589B2 (en) | 2018-04-03 | 2018-08-27 | Flexible display device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291537.6A CN108447403B (en) | 2018-04-03 | 2018-04-03 | Flexible display device and method of manufacturing the same |
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| Publication Number | Publication Date |
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| CN108447403A true CN108447403A (en) | 2018-08-24 |
| CN108447403B CN108447403B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810291537.6A Active CN108447403B (en) | 2018-04-03 | 2018-04-03 | Flexible display device and method of manufacturing the same |
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| WO (1) | WO2019192035A1 (en) |
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| CN108447403B (en) | 2020-07-03 |
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